George shone



(No Model.)

, GQ SHQNE. DOUBLE HULLBD vBssBL.

No. 424,508. Patented Apr. 1, 1890.

man@

I E 1 l ums mmm; una. Hummm. n4 c.

- UNI'IEDZ STATES.

`esonera sHoNE, oF EAs'r sfr; nonterminmg DouBLE-HuLLr-.D vessel... 'i

SPECIFICATION forming part of Lef-.te

y Appncasmmea me 27.1839.

,Ta all whom it may concern.-

Be it known that I, GEORGE SHONE, of East St. Louis, Illinois, have madeanew and useful Improvement in Ships, of which Vthe fol-' lowing is afull, clear, and exact description.

The improvement relates to those ships which are classified asnon-sinkable'P; Its leading feature is a water-tight chamber arrangedcentrally and extending vertically and longitudinally in the hull of theship and dividing the cargos'pace of the hull into two 4parts-namely,that contained within and that surrounding said chamber-and havingfloating-power to sustain the ship when said space surrounding saidchamber is waterlogged, as described, substantially as is hereinafterset forth and claimed, aided by the annexed drawings, making part ofthis speci# Figure 1 is a plan of the ,improved ship; Fig. 2, a sideelevation, partly broken away to show a portion of th'e interior insection; and Fig. 3, a vertical cross-section on the line 3 3 of Fig. 2.l '1 Only those parts of the ship are exhibited which are essentialI toan understanding of the improvement. Various features are indicated bythe broken lines in the dierent views. 4

The same letters of reference denote the same parts. f

A represents the hull. VIts dimensions in most cases are substantiallythe same as those of an ordinary ship of equivalent capacity, and inshape the hull may be varied more or less, according to the size orstyle of ship being built and the specialplan of its builder.

'The water-tight chamberB in its general out. -line conforms somewhatto` th'e hull, and in length and width it is suciently smaller than thehull to cause a space C-say, from six feet to twelve feet in width-to beformedbetween the side a of the hull and the side bof the water-tightchamber. The bottomb'of the chamberB is also raised above the bottom aof the hull to form an intervening space C', which in practice may notbe as deep asis the width of thespace C. The watertight chamber isarranged centrally in the' hull,'and it is carried up to project abovethe top of the hull,

substantially as shown,and it is made watertight from its bottoniupwardx to above the PATENT; :Grauen rs Patent Nq. 424,568, dated Aprn1, 1890.'`

Serial No. 315,769. (No model.)

top of the null, and the projecting upper porpreferablymade water-tight,but so that from pose incidentto-the operation and use of the ship-thatis, ,any machinery employed 1n moving the ship is contained within thewater-tight chamber, as well as the passengers rooms.- The freight isdesigned to be carried not only within the water-tight chamber, but alsoin the space C between the shell of' the Bulk-heads Dare used partly tostrengthen the ship and partly to divide it into compartments. Theyextend crosswise in the vship neath the water-tight chamber, and theyalso may extend" across the-levater-t'rglitchamher.

or some of the bulkheads may across the Water-tight chamber, and some'which are extended vacross the Water-,tight tight chamber intowater-tight compartments b2. The compartments a?, into which the' spaceC C is divided by means 'of the bulkheads, are preferably not madeWater-tight* that is, by means of some small opening, suchl as shown atd, Fig. 2, Water admitted into a compartment can llow thence notrapid1y,.,but gradually, into the othercompartments cl2, ahd the shipthereby kept trimfor if the hull is stove in,say, at the bows the water'enters that part ot the 'space C, and if it is retained there the shipis' liable to be depressed at its forward en'd only; but if the water isallowedto ilow thence throughout the length of the hull the ship settlesevenly -in the water'. v.

By means of suitable water-tight decks E the space G can be suitablydivided horizontally fon receiving freight, whichcan be. introducedthrough the hatchways e. These hatchways,by meansof suitable hatches,can be adapted to be water-tight, so that` any wator admitted into thespace ,C shall be conined to that deck or decks in which the leakoccurs. The decks are braced with diagonal 1,) by which means thestructure is considerably strengthened.

water-tight chamber and the shell of the hull...

be extended chamber are construct-ed to divide the waterf' beams,(indicated by the broken lines e',`Fig.

tion B of the watertight-chamber. is also above suitable-access can behad tothe in- -terior of the water-tight chamber for any puracross thespace C; at both sides of andV be,;

may not be extended. Those bulkheads The water-tight chamber B, byreasonof lts position and character, forms an air-chamber of suicient.buoyancy to iioat the entire sh1p even when the entire space C betweenthe hulls is water-logged.

- The hull A is similar to the hullI of an ordinary ship, and it maybeadded, aside from the improvement now under consideration,

v.the ship is of the customary construction.

vle.

tercraft,.and' even insmall boats. A

The present improvement 'is not restricted to what are termed shipsstrictly. It in Vpart can be embodiedin many kinds of waF Myl leadingobject is not to provide a cellular construction, but to forni anon-sinkable ship with as little additional weight of parts as possible,and 'so that the carryiug'capacity of the'ship shall not be reduced more'than is due to the extra weight of those additional parts, to whichendl form the described water-tight chamber, arranged centrally and eX-tending longitudinally in the ship and having its shell spaced' inwardfrom the outer --shellof the ship, as descrihed, and providing 1.v Aship-hull having a central watertight chamber whose shell is separatedfrom the shell of said hull by a surrounding Space through which waterentering therein through an opening in the shell of the hull can flowaround said central chamber, whereby said hull is kept trim,substantially as described.

2. Thecombiuation, in a ship, of an outer' and an inner hull,'said innerhull being water-tight and extending vupward above the top of said outerhull, substantially as described.

3. The combinationLin ship, of'an outer and an inner hull, said innerhull beiugwater-tightand spaced apart from and extending upward abovethe top of said outer-hull, substantially as described. v

4. A ship-hull havinga water-tight chamber arranged centrally in thehull and extending vertically-and longitudinally throughout theprincipal portionof said hull and dividing the cargo-space of the hull`into two partsnamely, that contained within and thatA surrounding saidchaniber-and having floatingpower suiiicient tosustain the hull whensaid space surrounding said chamber is waterlogged, and' saidsurrounding space being constructed to enable water` entering it to flowall around said centralchamber, .sub-

stantially as described.

vWitness my hand this 25th (layof June, 1889.

GEORGE SHONE. \.Vitnesses:

C. D. Moonv,

D. E f'. C. SANFORD.

